Publish to SNS topic using curl

Question

Is it possible to post (publish) to an SNS topic using a simple curl command from a shell in an EC2 instance?   
  
Something like this:  
  
curl -d "Test message" https://sns.us-west-2.amazonaws.com/?Action=Publish&TargetArn=arn%3Aaws%3Asns%3Aus-west-2%3A803981987763%3Aendpoint  
  
I've tried various combinations, and the closest I get is port 443 connection error. Does SNS use a different port number? I've not found any actual example of this, not sure it's supposed to work.

Answer

Hi, in a nutshell, yes it is possible... but requires re-architecting to:  
curl --> API Gateway --> SNS  
  
Review the following Link:   
Here are the steps outlined in the link above

```
We created an SNS topic to receive messages and set up a subscription on that topic to forward all messages to a cell phone.

We set up our basic API Gateway resources, including a REST API, a resource (/ingest) and a method (POST) on that resource.

We made an IAM role that could be assumed by API Gateway and gave permission to publish messages to our SNS topic.

We configured an integration to our SNS topic from our REST API’s resource and method. This integration included a request mapping template, a response mapping template, and a method response.

We deployed our REST API to make it live, then sent an HTTP request using curl. We received the message on our cell phone, indicating that it was successfully published to our SNS topic.
```

Hope this helps.  
-randy

Publish to SNS topic using curl

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